Improvement in thread guiding and cutting devices for bobbin-winders



NIQDAY & H. SHOOK. 'Impriovement in Thread Guiding and Cutting Devicesfor Bobbin Winders. N0. 124,66, Ptented Marchi-9,1872.

UNITED STATES muon.

THOMAS M.DAY AND HENRY SHOOK, OF WASHINGTON, OHIO.

Specification forming part of Letters Patent No. 124,667, dated March19, 1872.

Srncmrcnrron.

To all whom t may concern:

Be it known that we, T. M. DAY and H. SHOCK, of Washington Court-House,in the county of Fayette and State of Ohio, have invented certain newand Auseful Improvements in Bobbin-Winders for Sewing-Machines; and wedo hereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the'accompanying drawing andto the letters of reference marked thereon, which form a part of thisspecitication.

The nature of our invention consists in the construction and arrangementof automatic thread guiding and cutting devices for bobbin-winders, aswill be hereinafter more fully set forth.

In order to enable others skilled in the art to which our inventionappertains to make and Y use the same, we will now proceed to describeits construction and operation, referring to the annexed drawing, inWhich- Figure 1 is a plan view, and Fig. 2 an end view of our machine.

A represents a bed-plate of suitable dimensions, upon which are twoposts or standards, B B, supportingat their upper ends, in

C suitable boxes, a horizontal shaft, G. The

boxes or bearings for this shaft are so arranged that the shaft cannotonly revolve, but also move laterally or endwise. The lateral or endmotion of the shaft C is produced by means of a roller, D, attached onthe shaft at one end, and provided around its circumference with anendless groove, a, running from end to end of the roller; or, in otherwords, two grooves running spirally in opposite directions from end toend, and the ends of the grooves running into each other, as shown. Akey or feather, d, pivoted on the upper end of a post, B', works in thegroove a on the roller. The spool is placed on a post, b, in

the corner of the bed-plate A, and the thread passes from the' samethrough a notch, e, in the extended base of the post B next to thespool. From thence it passes through a hook,

f, in an arm, E, which arm is attached loosely onthe shaft O, 0r the armmay be arranged in any other suitable manner, only so as to bring thehook f directly in front of the propelling-wheel Gr attached to theshaft C, and so as to move with the same for the purpose of retainingthe hook always in the sa-me relative position to said wheel. The arm Eis so arranged that it will move sidewise with the shaft, but notrevolve. For this purpose the front end of the arm is split or forkedand embraces a guide-rod, 7L. From the hookf the thread passes aroundthe wheel Gr and to the bobbin which sits in its usual position on thesewing-machine, and by the turningof the bobbin the winder is set inmotion, the thread turning the wheel G as it is wound up, and the latterturning the shaft C and itsroller D, so that the whole will be movedendwise by the key d, which iits the grooves in the roller. The Wheel Gis grooved circumferentially, and around the same is a rubber ring,which keeps the thread from slipping over the wheel. A cutter, H, isattached to one of the posts B, and receives motion from a projection,c', on the inner end of the roller D, and when the bobbin is full thethread is cut oi' or held fast. The inner end of the cutter is toothed,and for each time the grooved roller completes its inward movement thepin on the same moves or turns the cutter the distance of one tooth, andby the time the bobbin is full the cutter has turned down sufficienti yto cut the thread. This attachment may be attached to the machine ormade separate to be placed in front of the bobbin while winding, and itmay be used with any length of bobbin by varying the traverse of theshaft C by slipping aring, m, on the roller D, to any point where thegrooves cross.

Having thus fully described our invention', whatwe claim as new, anddesire to secure by Letters Patent, is-

1. The combination of the shaft C, grooved roller D, key d, spool-postb, notch e, hook f,

and Wheel G, all constructed and arranged to operate substantially asand for the purposes herein set forth.

2. In combination with the above, we claim the cutterH and projection t'on the inner end of the roller D, substantially as and for the purposesherein'set forth.

In testimony that we claim the foregoing as our own we affix oursignatures in presence of two witnesses. THOMAS M. DAY. Vitnesses: HENRYSHOOK.

I. S. BEREMAN, W. J. BLooMnn.

